title: Collaborative calibration of three established reference preparations for specific proteins in human sera as secondary standards for IgA, IgM, and IgG.
mesh_terms: D001798:Blood Proteins / Q000592:standards*; D006801:Humans; D005779:Immunodiffusion; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis*; D012015:Reference Standards
chemical_list: D001798:Blood Proteins; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins